/*******************************************************************************
* Copyright (c) 2007 Bruno Medeiros and other Contributors.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Bruno Medeiros - initial implementation
*******************************************************************************/
package melnorme.utilbox.collections;
import java.util.Iterator;
/**
*/
public class SimpleChainedIterator<T> implements Iterator<T> {
Iterator<? extends T> firstIter;
Iterator<? extends T> secondIter;
//Iterator<T> currentIter;
public static <U> Iterator<? extends U> create(
Iterator<? extends U> firstIter,
Iterator<? extends U> secondIter) {
return new SimpleChainedIterator<U>(firstIter, secondIter);
}
public SimpleChainedIterator(Iterator<? extends T> firstIter, Iterator<? extends T> secondIter) {
this.firstIter = firstIter;
this.secondIter = secondIter;
//currentIter = firstIter;
}
@Override
public boolean hasNext() {
return firstIter.hasNext() || secondIter.hasNext();
}
@Override
public T next() {
if(firstIter.hasNext())
return firstIter.next();
return secondIter.next();
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
}